body {
  background-color: #a4c5c7;
  width: 1200px;
  margin: 0 auto;
}

main {
  width: 1200px;
  height: 700px;
  background-color: white;
}

.login {
  width: 600px;
}

main .margin_mini {
  width: 1100px;
  height: 600px;
  margin: 0 auto;
}

main .margin_mini .top {
  height: 100px;
  text-align: center;
  line-height: 100px;
}

main .margin_mini .top i {
  display: inline-block;
  width: 20px;
  height: 30px;
  border-left: 1px solid #efefef;
}

main .margin_mini .top span {
  display: inline-block;
  width: 200px;
}

main .margin_mini .top span a {
  font-size: 20px;
}

main .margin_mini input {
  width: 400px;
  height: 40px;
  display: block;
  outline: none;
  caret-color: black;
  border: 1px solid #c7c7c7;
  color: gray;
}


main .margin_mini .bot2 {
  width: 1000px;
  height: 555px;
  margin: 0 auto;
  border: 1px solid #c7c7c7;
}

main .margin_mini .bot2 .form-horizontal {
  font-size: 20px;
  width: 700px;
  margin: 20px auto;
  text-align: center;
  margin-left: 50%;
  transform: translateX(-40%);
}

main .margin_mini .bot2 .form-group:nth-child(1){
      margin-top: 110px;

}
main .margin_mini .bot1 .form-group .col-sm-10{
  width: 450px;
}
main .margin_mini .bot1 .form-group .col-sm-10 input {
  width: 400px;
  height: 40px;
  display: block;
  }


main .margin_mini .bot2:nth-last-of-type(input) {
  display: block;
  width: 378px;
  height: 44px;
  background-color: black;
  color: white;
  margin-left: 325px;
  border: 1px solid transparent;
  outline: none;
  font-size: 20px;
  text-align: center;
  line-height: 44px;
}

